Samuel mueeell



(No Model.)

S. MURRELL. Separating and Condensing Zine or White Lead Fumes.

No. 229,448. Patented June 29,1880.

lNVENTOR 05%! M C322 ES.SIES v & ATTORNEY "JFETERS. FHOTO-LITMOGRAPHER. WASHINGTON. D c.

UNITED STATES PATENT OFFICE.

SAMUEL MURRELL, OF JOPLIN, MISSOURI, ASSIGNOR OF ONE-HALF OF HIS RIGHT TO JAMES MILLER LEONARD, OF SAME PLACE.

SEPARATING AND CONDENSING ZINC OR WHITE-LEAD FUMES.

SPECIFICATION formingpart of Letters Patent No. 229,448, dated June 29, 1880.

Application filed March 31, 1880.

To all whom it may concern:

Be it known that I, SAMUEL MURRELL, of Joplin, in the county of Jasper and. State of -Missouri, have invented a new and valuable Improvement in Apparatus for Saving, Separating, and Condensing Zinc or White-Lead Fumes; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a side view of my improved apparatus, and Fig. 2 is an end view of the hoppers.

This invention hasrelation to improvements in means for condensing and saving white lead or zinc-white, and separating it from the gas that escapes with it from the furnace.

The object of theinvention is, mainly, while saving the metallicfumes and condensing them, to separate the deleterious gases therefrom and deliver them at a point where they cannot injuriously affect the life or health of the workmen; and it consists in" the combination, with condensing-hoppers having escape-pipes provided with separated screens and a filtering material between them, and a stack connected by valved pipes with said hoppers, of a stack connected directly to the furnace, a pipe connecting said stack, and a fan in said pipe exhausting from one stack and blowing into the other, as hereinafter shown and described.

In the annexed drawings, the letter A designates a stack constructed or lined with firebrick, into which the fumes or smoke passes directly from the furnace through a flue entering the same at a. This stack has near its bottom an opening, a, closed by a suitable door, through which access is had to its interior for repairing or cleaning the same.

The stack A, from its top, is connected with a similar stack, B, at its bottom by a pipe, 0, having at its lower end afan-case, D, containing a fan, D, that exhausts the fumes from the furnace and stack A and forces them into (No model.)

the stack B. This stack is provided with a suitable door, through which access is had to its interior.

b b designate flues leading from the stack B into independent hoppers G G, and provided each with a valve, 0, by means of which the connection between the stack and the said hoppers is established or cut off at pleasure.

The hoppers are close vessels, having in their bottoms a number of slides, a, by means of which their contents may be removed, and they are constructed narrower at bottom than at top.

J indicates escape-pipes extending upward a sufficient distance from the hopper, and provided at their upper ends with the double screens a t, arranged at a suitable distance apart, and having between them a filtering material, such as charcoal, small gravel, or other equivalent substance. This filter will allow the gases to escape, but will stop and precipitate the lead or zinc fumes. These gases, so injurious to health, may be discharged from the filter into a suitable chamber and then conducted by flues to any desired place.

In apparatus of this description heretofore used the operators have no control over the gases, and in consequence they are greatly injured in health by inhaling the same.

The valves 0 of the lines permit one of the hoppers to be cut off from the stack B and emptied, while the other collects the metallic fumes.

What I claim as new, and desire to secure by Letters Patent, is-

l. The apparatus herein described for condensing lead and zinc fumes and separating deleterious gases therefrom, consisting of the connected stacks A B and exhaust-fan in the connection thereof, the hoppers G G, connected to stack B, and the discharge-pipes J, having the screens 13 z", and a filtering material between said screens, substantially as 0 specified.

2. The combination, with the condensinghoppers having the escape-pipes J, provided with the separated screens and a filtering material between them, and a stack, B, con- In testimony that I claim the above I have nected by valved pipes with said hoppers, of hereunto subscribed my name in the presence a stack, A, connected directly to the furnace, of two witnesses.

a pipe, 0, connecting the said stack, and a SAMUEL MURRELL. fan, D, in said pipe to exhaust from stack A and blow into stack B, substantially as speci- Witnesses WILLIAM VENABLE KATES,

fied. HENRY LEE GrvENs. 

